Microsoft has acquired 6Wunderkinder, the creator of popular to-do list app, Wunderlist, it was announced Tuesday.

“The addition of Wunderlist to the Microsoft product portfolio fits squarely with our ambition to reinvent productivity for a mobile-first, cloud-first world,” writes Eran Megiddo, OneNote general manager. “Building on momentum for Microsoft Office, OneNote and Skype for Business, as well as the recent Sunrise and Acompli acquisitions, it further demonstrates Microsoft’s commitment to delivering market leading mobile apps across the platforms and devices our customers use – for mail, calendaring, messaging, notes and now tasks.”